Wagner Tuning BMW/Toyota B58 EVO1 Intake Manifold Fuel Rail Hose Kit

Wagner Tuning BMW/Toyota B58 EVO1 Intake Manifold Fuel Rail Hose KitThe Wagner Tuning B58 EVO1 Hose & Injector Kit is a fuelling upgrade designed to support multi port injection (MPI) setups on first generation BMW Toyota B58 engines. This kit provides the injectors and high quality hose assemblyrequired to complete an MPI conversion when used alongside an aftermarket intake manifold such as the Wagner EVO1 or similar. Ideal for high boost, hybrid turbo and ethanol compatible builds, this kit delivers the fuelling

The Wagner Tuning B58 EVO1 Hose & Injector Kit is a fuelling upgrade designed to support multi-port injection (MPI) setups on first-generation BMW/Toyota B58 engines. This kit provides the injectors and high-quality hose assemblyrequired to complete an MPI conversion when used alongside an aftermarket intake manifold such as the Wagner EVO1 or similar.

Ideal for high-boost, hybrid-turbo and ethanol-compatible builds, this kit delivers the fuelling headroom and reliability needed to safely support increased power levels.

Key Features

• High-flow MPI injectors suitable for tuned and high-boost B58 engines

• Reinforced hose kit for reliable fuel delivery under increased pressure

• Designed to integrate with aftermarket MPI-ready intake manifolds

• Supports ethanol blends (E30–E85 depending on injector spec)

• Improves fuelling stability and cylinder distribution at higher loads

• Ideal for hybrid turbos, big-boost setups and advanced tuning strategies

• Suitable for fast-road, drag and track applications

Compatibility

BMW B58 (Gen 1) Models

• M140i (F20/F21)

• M240i (F22/F23)

• 340i / 440i (F30/F32/F36)

• 540i / 640i (early B58 variants)

• X3/X4 M40i (B58 Gen 1)

Toyota

• GR Supra A90 / A91 (3.0 B58 Gen 1)

Requires an MPI-ready manifold (not included). Not suitable for B58TU/B58 Gen 2.

Ideal For

• B58 cars running Stage 2+, hybrid turbos or ethanol blends

• Owners adding MPI via an aftermarket manifold

• Drivers needing improved fuelling headroom for high-boost setups

• Supra and M Performance models used on track, drag strips or hard fast-road driving

• Vehicles experiencing fuel pressure limitations on DI-only setups

Why Choose the Wagner Tuning EVO1 Hose & Injector Kit

As B58 power levels increase, the stock direct-injection system becomes a limiting factor — especially with ethanol mixes, hybrid turbos or aggressive boost strategies. Adding MPI solves this by supplying additional, reliable fuelling at higher loads.

Wagner’s EVO1 Hose & Injector Kit provides the essential components needed to complete an MPI conversion: high-flow injectors and a robust hose assembly designed for consistent fuel delivery. Perfect for drivers who already have an MPI-ready manifold and fuel rail, or who are building a custom setup.

This kit gives B58 tuners the flexibility, safety and headroom required for serious performance gains.

Installing / Notes

• MUST be used with an MPI-compatible intake manifold and fuel rail

• ECU tuning required to activate MPI correctly

• Professional installation recommended

• Suitable for ethanol blends depending on injector spec